Low back pain can be caused by a number of different conditions. Some of the most common causes of back pain include, but are not limited to:
Arthritis: Low back pain is sometimes due to inflammation of the facet joints between the vertebrae. This inflammation is almost always due to a progressive disease or years of wear and tear.
Facet Joint Syndrome: Back pain is sometimes caused by destruction of the facet joint surfaces. This damage is generally caused by degenerative diseases (such as osteoarthritis), wear and tear, too much weight on the joint, or an injury.
Pinched Nerve (radiculopathy): Nerve pain is caused when there is rubbing, pressure, or another source of irritation on a nerve in the spine. Sciatica: Sciatica occurs when a pinched sciatic nerve, which runs from the lumbar spine into the buttocks, the back of the thighs, and sometimes to the calf and foot, is compressed or irritated.
Spinal Stenosis: This condition occurs when part of the spinal canal narrows and causes nerve irritation and reduces the flow of oxygen and blood to the spinal cord.
Bulging Disc: Bulging discs are usually caused by years of wear and tear, and may eventually cause the spinal canal to narrow.
Herniated Disc: A herniation occurs when there is damage to the outer surface of a disc that allows the soft inner material of the disc to press out of its normal space. Herniated discs usually occur in the lumbar spine.
Segmental Instability: Segmental instability occurs when there is excess movement between two vertebrae, which pinches or irritates the nerve roots.
If you would like to learn more about back pain, then read the following resources below: